Query v$db_cache_advice for factor,
SQL> col size_for_estimate format 9,999 heading SIZEMB
SQL> col ESTD_PHYSICAL_READ_FACTOR format 99.99 heading EST_P_READ_FACTOR
SQL> col ESTD_PHYSICAL_READS format 99,999 heading EST_P_READS
SQL> col BUFFERS_FOR_ESTIMATE format 99,999 heading #BUFFERS
SQL>
SQL> select
2 SIZE_FOR_ESTIMATE
3 ,SIZE_FACTOR
4 ,BUFFERS_FOR_ESTIMATE
5 ,ESTD_PHYSICAL_READ_FACTOR
6 ,ESTD_PHYSICAL_READS
7 from v$db_cache_advice
8 /
SIZEMB SIZE_FACTOR #BUFFERS EST_P_READ_FACTOR EST_P_READS
------ ----------- -------- ----------------- -----------
4 1 499 0
8 2 998 0
16 .0976 1,996 1.48 90,836
32 .1951 3,992 1.36 83,188
48 .2927 5,988 1.31 80,414
64 .3902 7,984 1.28 78,687
80 .4878 9,980 1.27 77,977
96 .5854 11,976 1.26 77,148
112 .6829 13,972 1.20 73,447
128 .7805 15,968 1.19 72,746
144 .878 17,964 1.01 61,880
160 .9756 19,960 1.00 61,386
164 1 20,459 1.00 61,347
176 1.0732 21,956 1.00 61,189
192 1.1707 23,952 .99 60,893
208 1.2683 25,948 .97 59,521
224 1.3659 27,944 .92 56,728
240 1.4634 29,940 .89 54,547
256 1.561 31,936 .86 52,938
272 1.6585 33,932 .81 49,405
288 1.7561 35,928 .80 49,376
304 1.8537 37,924 .80 49,336
320 1.9512 39,920 .75 46,040
23 rows selected.
SQL>
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